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In - Khối lập phương xoay theo chuột - JavaScriptBank.com

Tám điểm vuông sẽ có kích thuớc to, nhỏ khác nhau tùy theo khoảng cách, hướng nhìn của người dùng, tạo nên một hình vuông có thể chuyển động khi ta dùng chuột kéo và thả ở vị trí bất kì trên trang web.

Phiên bản đầy đủ: jsB@nk » 3D » Khối lập phương xoay theo chuột

<SCRIPT language=javascript>
/*
     This script downloaded from www.JavaScriptBank.com
     Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
*/
<!-- // (c) 2001 Till Nagel, till@netzministerium.de & Rene Sander, rene@netzministerium.de

// ---------------------------------------------------------------------------

// creates cube model with ColorRectMaterial blending from white to bhack
var cubeModel;
cubeModel = new Model("cube", createColorRectMaterial(new Color("000000"), new Color("ffffff"), "images/space.gif"));
// Wow - Netscape really sucks. Remove this comment line and it won't recognize the first point!

// defines model points.
// The model's points have to be defined before the respective code is written into the document.
cubeModel.setPoints(createCubeModelPoints());


// ---------------------------------------------------------------------------

// modulator to rotate the model dependent on mouse interactions
var myMouseModulator = new MouseModulator("myMouseModulator", 0);


// ---------------------------------------------------------------------------

function initOnLoad() {
	fixNetscape();

	cubeModel.assignLayers();
	
	// creates and inits matrix to initialize the model
	var initMatrix = new Matrix();
	initMatrix.scale(50, 50, 50);
	
	// >> begin to work with the model etc.

	// initializes model
	cubeModel.transform(initMatrix);
	
	// >> first draw of the model (recommended)
	 cubeModel.draw();
	
	// starts animation
	animate();
}

/*
 * The main animate method. Calls itself repeatedly.
 */
function animate() {
	var delay = 10;
	
	// animates cube model ----------------------------------------

	// animates the modulator to spin the cube
	myMouseModulator.animate();
	// transforms the cube depending on mouse movements.
	cubeModel.transform(myMouseModulator.getMatrix());
	
	// updates display
	cubeModel.draw();
	
	// calls itself with an delay to decouple client computer speed from the animation speed.
	// result: the animation is as fast aw possible.
	setTimeout("animate()", delay);
}


// event handling
document.onmousemove = mouseMoveHandler;
document.onmousedown = mouseDownHandler;
document.onmouseup = mouseUpHandler;
if (ns || ns6) document.captureEvents(Event.MOUSEMOVE | Event.MOUSEDOWN | Event.MOUSEUP);

/*
 * The mouse handlers in this document must call the modulator's handlers.
 * To be able to use a mouse modulator and to do your own stuff.
 */
function mouseMoveHandler(e) {
	// calls move handler of the mouse modulator
	myMouseModulator.move(e);

	/*
	// other stuff, e.g.
	if (ns || ie) {
		mouseX = (ns) ? e.pageX : event.x;
		mouseY = (ns) ? e.pageY : event.y;
	}
	*/

	return !ie;
}

function mouseDownHandler(e) {
	// calls down handler of the mouse modulator
	myMouseModulator.down(e);
}

function mouseUpHandler(e) {
	// calls up handler of the mouse modulator
	myMouseModulator.up(e);
}



// ---------------------------------------------------------------------------

function createCubeModelPoints() {
	// the cube model
	return new Array(
		new Point3D( 1,  1,  1, 0),
		new Point3D( 1,  1, -1, 0),
		new Point3D( 1, -1,  1, 0),
		new Point3D( 1, -1, -1, 0),
		new Point3D(-1,  1,  1, 0),
		new Point3D(-1,  1, -1, 0),
		new Point3D(-1, -1,  1, 0),
		new Point3D(-1, -1, -1, 0)
	);
}

// -->
</SCRIPT>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

<DIV id=fixnetscape style="POSITION: absolute; VISIBILITY: hidden"></DIV>
<SCRIPT language=JavaScript type=text/javascript>
	<!-- // (c) 2001 Till Nagel, till@netzministerium.de & Rene Sander, rene@netzministerium.de
	
	/* MANDATORY: INSERTION OF HTML PART INTO PAGE
	   creates the HTML code representing the model's points
	   NB: This is written directly into the page from within the method */
	
	cubeModel.createPointCode();
	// -->
	</SCRIPT>
	<!--
    	This script downloaded from www.JavaScriptBank.com
    	Come to view and download over 2000+ free javascript at www.JavaScriptBank.com
	-->

http://javascriptbank.com/javascript/3d/js/LyrObj.js http://javascriptbank.com/javascript/3d/js/3dhtml.js http://javascriptbank.com/javascript/3d/js/ColorUtil.js http://javascriptbank.com/javascript/3d/js/MouseModulator.js http://javascriptbank.com/javascript/3d/js/materials.js